* {
    margin: 0;
    padding: 0;
}

ul {
    list-style-type: none;
}

body {
    font: 14px "Microsoft Yahei";
    overflow-x: hidden;
    background-color: #2B2B2B;
}

h1 {
    width: 900px;
    margin: 40px auto 100px;
    font: 32px "Microsoft Yahei";
    text-align: center;
    color: #D3D3D3;
}